Anemometer - Draught
Swema 03+ and swema 03 are omnidirectional anemometers for air velocity.
The difference between the sensors is that Swema 03+ has in-built barometer and Swema 03 has not. Booth sensors are temperature compensated and can show standard air velocity and actual air velocity. The barometric pressure is measured in Swema 03+ and selectable for Swema 03 by PC-settings.
Theory: Actual air velicity shows the velocity as it is at that temperature and barometric pressure. Standard air velocity is the velocity of the air, calculated so it is valid for that air at standard conditions of 20degC and 1013hPa.
Swema AB, VAT.no. SE556052555101